Improvement in plows



W. W..,SPBBR. Plow.

No. 219,029. Paented Aug. 26,1879.

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.elm imnaulul` 'UNITED STATES PATENTOFFIGE.

WILLIAM W. SPEER, OF PITTSBURG, PENNSYLVANIA.

IMPROVEMENT IN P| ows.

Specication forming part of Letters Patent No. 219,029, dated August 26,1879 application filed July 10, 1879.

` such as will enable others skilled in the art to which it appertainsto make and use the same, reference being had to the accompanyin gdrawings, and to letters of reference marked thereon, which form a partof this specification.

My invention relates to an improvement in plows; the object being toprovide for the lateral adjustment of the plow-beam both angularly andbodily, that the beam may be located to receive the draft in such amanner as to cause the plow to cut evenly and without a tendency to leadin either direction.

My invention consists in certain details of construction and combinationof parts, as will hereinafter be explained, and pointed out in theclaim.

In the accompanying drawings, Figure 1 is a view, in'perspective, of aplow provided with my improvement. Fig. 2 is a rear elevation of thesame. Fig. 3 represents detached views of the index-brace for the rearend of i the plow-beam, the fastening-bolt, and adjusteven draft on theplow, it is sometimes only necessary to adjust the plow-beam angularlywith relation to the land-side, and again it becomes necessary to adjust the entire plow-beam laterally toward or from the land-side. Toprovide for such duplex adjustment the following construction andarrangement of parts are provided:

C is the plow-standard, the head or top plate, a, of which is formedwith an elongated transverse slot, b, through which passes the bolt D,

which serves to secure the beam A to the standard.

In order that the head of the bolt shall be kept from any lateralmovement when the beam has been moved laterally to the required point ofadjustment, the lower surface of the standard-plate a has any desirednumber of' grooves or notches, c, preferably V-shaped in form, formedtherein in casting, and on opposite sides of the slot b.

The head d of the bolt D is constructed with a V-shaped upper surface,whereby it may be shifted either to the right or left to engage with anyof the notches c in the standardplate. Then, by screwing down thetightening-nut E, the parts are held firmly in place, and the beamprevented from any lateral displacement.

Instead of forming the grooves or notches c on the under surface of thestandard-plate or head ct, they may be formed in a separate andindependent plate or washer, E', as shown in Fig. 6, which, as will beobserved, is provided with an elongated transverse slot, e', for thepassage of the beam-bolt. Washer E is made to fit snugly against thesides F F of the standard, and thus the same result can be obtained asif the notches were formed in the head or top plate of the standard.

The construction and arrangement of parts above described are simple andeffective, and will enable the plow-beam to be adjusted bodily toward orfrom the landside, and thus secure the desired line of direction ofdraft.

Between the plow-handles B B is secured an index-brace, G, by bolts H,extending through the end walls, g; or it may be secured Index-brace Gin any other desired manner. is slightly curved or arc-shaped in form,and

is formed of the top plate, I, and depending flanges or sides K. The topplate, I, is pro vided with an elongated arc-shaped slot, h,

through which passes the bolt L, for securing the rear` end of theplow-beam in place.

The lower edges of the ilanges or sides K are provided with notches l,preferably V shaped, though other forms of notches might be employed.

M is an adjustable bolt-plate or washer, con structed withupwardly-projecting ilanges m, which fit against the sides of iianges K,and

sired angular adjustment.

thereby prevent any longitudin al displacement of the plate M. v

To prevent any lateral displacement or In ovement ot' plate M when therear end of the plowbeam has been secured in desired adjustment, theplate M is provided with two or more projections, corresponding in shapeand size with the notches in the lower edge of the flanges K, saidprojections fitting within the notches, and thus holding the beam frommoving laterally.

Ihe bolt-head N rests against the lower surface of the plate M, and byloosening the nut N the projections on the plate M may be disengagedfrom the notches in the lower edges 4 of the ianges K, and thus allowthe endof the plow-beam to be moved laterallyT to the de- The nut N isthen tightened, which operates to draw the projections on plate M intothe corresponding recesses in the iianges of lthe index-brace, and thusfirmly bind such parts together.

Instead of constructing the index-brace with notches or grooves on itslower edges, it may be provided with projections P on the outer surfacesof said anges, as illustrated in Fig. 7 and in such form of constructionthe inner surfaces of the upwardly-projecting ian ges m will becorrespondingly notched or grooved, as at a a. This form of constructionenables the plow-beam to be secured against accidental lateraldisplacement, the same as the construction hereinbefore described.

Again, the parts maybe made as shown in Fig. 8. In the latter instanceinner surfaces ofthe index-plate are furnished with projections, and

the bolt-plate provided at each end with two upwardly-projectingflanges, g g', the outer flange, g, having a smooth inner surface, whichengages with the outer surface of the flange of the index-plate, whilethe in ner iiange has projections r formed on its inner sides, whichengage with corresponding grooves or notches formed between the lateralprojections on the linner' sides of the ianges of the index-brace.

l am aware that notched engaging-surfaces have been applied to thestandard and indexor sides provided with notches or grooves, an

adjusting-bolt, and a bolt-plate or washer provided with anges on itsends, and also with V-shaped projections adapted to engagein the groovesin the index-plate, substantially as set forth.

In testimony that I claim the foregoing I have hereunto set my hand.

WILLIAM WV. 4SPEER. Witnesses: Trios. D. GRAHAM, JOHN W. WILEY.

